Engine Compression
Test compression with engine at normal operating temperature, spark plugs removed, throttle valve wide open and engine at cranking speed (300 RPM).
COMPRESSION SPECIFICATIONS
| Compression Ratio | 8.5:1 | |
|---|---|---|
| Compression Pressure | ||
| New Engine | 170 psi (12 kg/cm2 ) | |
| Minimum | 120 psi (8.4 kg/cm2 ) | |
| Max. Variation Between Cylinders | 9 psi (0.6 kg/cm2 ) | |